What is ESCT in New Zealand?

ESCT stands for employer superannuation contribution tax. It is the tax an employer pays on the KiwiSaver contributions it makes for you, deducted before the money reaches your account. The rate is set by your total remuneration in the previous year: 10.5% to $18,720, 17.5% to $64,200, 30% to $93,720, 33% to $216,000, and 39% above that. So if your employer contributes $2,100 and your ESCT rate is 30%, about $1,470 lands in your KiwiSaver.

ESCT, employer superannuation contribution tax, is the tax your employer deducts from the KiwiSaver or complying fund contributions it makes for you, before that money reaches your account, so it directly affects what your employer's contribution is actually worth to you. The rate is not flat: it is set using your total remuneration for the previous tax year, salary, wages and taxable allowances, then applied in bands from 10.5% up to 39%. Because it uses last year's earnings, a pay rise, bonus or overtime this year can quietly push you into a higher ESCT bracket next year, shrinking the share of the employer contribution you keep. To see your own figures, use the linked ESCT Calculator: enter your pay frequency, income per payslip, your employer's superannuation contribution percentage, and whether that contribution already includes ESCT. It returns your applicable ESCT rate based on annualised gross income, the employer superannuation deduction per payslip, the ESCT owing, and the net superannuation contribution that actually lands in your KiwiSaver. This is worth checking whenever you compare job offers with different employer contribution rates, review a payslip, or want to know how a pay rise will affect next year's net super. Figures are indicative only, based on current IRD ESCT thresholds, not personalised tax advice.

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Indicative only, not financial advice. Uses current New Zealand rates for 2026/27. Last reviewed 2026-08-25. See also financial literacy NZ.